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Alstar 1.25" O-III Filter - Bundle with - 1.25" 45°Diagonal Mirror
4.5 (94 items)
Limited Time SaleUntil the end
13
03
32
US$44.14 cheaper than the new price!!
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Used US$29.43
Product details
| Management number | 208573790 | Release Date | 2026/03/22 | List Price | US$29.43 | Model Number | 208573790 | ||
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- Each Alstar 1.25 inch O III Filter is individually inspected and proudly inscribed with the percentage of light transmittance of the two O III emission lines
- Not only useful at light polluted sites; the contrast is also increased at dark sky sites; can be used with all 1.25 inch eyepieces; Filter made from high grade glass with dichroic interference and antireflection coatings
- Completely blocks virtually all other visible wavelengths of light so views of nebulas are optimized; Increases contrast through selective filtration Anti reflection coated to prevent glaring and ghosting
- Diagonal Prism Optical Prism inside rather than a mirror which makes your image clear and sharp
- 1.25 inch 45 degree mirror star diagonal for any telescope with 1.25 inch connector ;not suitable for Newtonians
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